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1997 - 2003 F150 1997-2003 F150, 1997-1999 F250LD, 7700 & 2004 F150 Heritage SPONSORED BY:

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  #1  
Old 08-30-2003, 11:10 PM
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Best plugs for 98 F150 4.6L?

Fist of all, THANKS RACERGUY for the pointers on changing the spark plugs!! I'm not sure I would have been as motivated to change them without the guidance. Anyhow - my question is, what are the best plugs for performance, milage etc? Any suggestions? Thanks for the input!

-Aaron
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Old 08-31-2003, 12:02 AM
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Best plugs for 98 F150 4.6L?

Motorcraft is the way to go. They last along time and are priced right. Performance is good too.
Jimmy
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Old 08-31-2003, 10:33 AM
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Best plugs for 98 F150 4.6L?

i asked the same question and they are saying that motorcraft are the way to go,thats what i will be useing
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Old 08-31-2003, 11:18 AM
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Best plugs for 98 F150 4.6L?

Maybe Racerguy should add this question to the FAQ. It sure is comming up alot lately.
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  #5  
Old 08-31-2003, 02:27 PM
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Best plugs for 98 F150 4.6L?

Good idea AegisSailor

I added it to the FAQ's and also to the "how to" thread.
Take a look and see if there sohuld be any changes when you get a chance.
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Old 08-31-2003, 02:34 PM
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Best plugs for 98 F150 4.6L?

Quote:
Originally posted by Racerguy
Good idea AegisSailor

I added it to the FAQ's and also to the "how to" thread.
Take a look and see if there sohuld be any changes when you get a chance.
Dave,

Autolite & Motorcraft spark plugs are both made by Honeywell,
a division of Allied Signal. Fram is also a division of Allied Signal,
and you are correct about not using anything with a Fram name
on it....
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Old 08-31-2003, 02:59 PM
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Best plugs for 98 F150 4.6L?

Quote:
Originally posted by Racerguy

Take a look and see if there sohuld be any changes when you get a chance.
Looks good buddy. The FAQ is really comming along Haven't seen that door ajar question in a while!
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Old 08-31-2003, 03:00 PM
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Best plugs for 98 F150 4.6L?

I was told that Motorcraft plugs werent made by Honeywell anymore but that could be wrong
I've seen a lot of problems with Autolite plugs and have heard of other people with problems with them too.
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Old 09-01-2003, 10:26 PM
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Best plugs for 98 F150 4.6L?

My vote is for Motorcraft from ford, i request them every time.
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Old 09-02-2003, 06:55 AM
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Best plugs for 98 F150 4.6L?

Yes,it is true Autolite and Motorcraft are both made by Allied-Signal,who is owned by Honeywell.But,Motorcraft are made to a different specification then Autolite.Ford has them made to there specifications.How do I know this?I was curious about it,so I emailed www.autolite.com and they themselves sent me an email stating all the above information.

So,if I were to use a plug in my Ford,it would be a Motorcraft.
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Old 09-02-2003, 09:58 PM
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Best plugs for 98 F150 4.6L?

I would shy away from the NGK Iridium. As soon as I installed them the truck was harder to start. I would guess that the gap is excessive but the instructions said not to adjust the gap because the tip is so small.

They are also very expensive.

I am tempted to find a set of Motorcraft and install them. I find more and more reasons to stay with stock components.
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Old 09-03-2003, 06:31 AM
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Best plugs for 98 F150 4.6L?

Since only the center electrode is iridium, half of your plugs will
wear out prematurely, due to the opposite spark polarities with
the EDIS ignition system...Stay with Motorcraft double platinums!!
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  #13  
Old 09-04-2003, 01:14 AM
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Best plugs for 98 F150 4.6L?

Bob, just curious. Why not use Fram products? Are they junk?
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Old 09-04-2003, 06:22 AM
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Best plugs for 98 F150 4.6L?

Quote:
Originally posted by CPerry
Bob, just curious. Why not use Fram products? Are they junk?
The oil filters are.....there has been a lot of posts on the problems
with Fram oil filters......Personally, I'm a believer in using the
manufacturer's OEM oil filter, so I use Motorcraft on my Fords,
and Mann (German filter mfg.) filters on my Mercedes'
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Old 09-04-2003, 06:22 AM
 
 
 
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